Index: head/libexec/ftpd/blacklist.c
===================================================================
--- head/libexec/ftpd/blacklist.c	(revision 317861)
+++ head/libexec/ftpd/blacklist.c	(revision 317862)
@@ -1,57 +1,57 @@
 /*-
  * Copyright (c) 2016 The FreeBSD Foundation
  * All rights reserved.
  *
  * This software was developed by Kurt Lidl under sponsorship from the
  * FreeBSD Foundation.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE. */
 
 /* $FreeBSD$ */
 
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "blacklist_client.h"
 #include <blacklist.h>
+#include "blacklist_client.h"
 
 static struct blacklist *blstate;
 extern int use_blacklist;
 
 void
 blacklist_init(void)
 {
 
 	if (use_blacklist)
 		blstate = blacklist_open();
 }
 
 void
-blacklist_notify(int action, int fd, char *msg)
+blacklist_notify(int action, int fd, const char *msg)
 {
 
 	if (blstate == NULL)
 		return;
 	(void)blacklist_r(blstate, action, fd, msg);
 }
Index: head/libexec/ftpd/blacklist_client.h
===================================================================
--- head/libexec/ftpd/blacklist_client.h	(revision 317861)
+++ head/libexec/ftpd/blacklist_client.h	(revision 317862)
@@ -1,53 +1,55 @@
 /*-
  * Copyright (c) 2016 The FreeBSD Foundation
  * All rights reserved.
  *
  * This software was developed by Kurt Lidl under sponsorship from the
  * FreeBSD Foundation.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE. */
 
 /* $FreeBSD$ */
 
 #ifndef BLACKLIST_CLIENT_H
 #define BLACKLIST_CLIENT_H
 
+#ifndef BLACKLIST_API_ENUM
 enum {
 	BLACKLIST_AUTH_OK = 0,
 	BLACKLIST_AUTH_FAIL
 };
+#endif
 
 #ifdef USE_BLACKLIST
 void blacklist_init(void);
-void blacklist_notify(int, int, char *);
+void blacklist_notify(int, int, const char *);
 
 #define BLACKLIST_INIT() blacklist_init()
 #define BLACKLIST_NOTIFY(x, y, z) blacklist_notify(x, y, z)
 
 #else
 
 #define BLACKLIST_INIT()
 #define BLACKLIST_NOTIFY(x, y, z)
 
 #endif
 
 #endif /* BLACKLIST_CLIENT_H */